tito-t:
what??
Please read my question closely.
You just wrote about 1000000 and that there is no error,
you didn't write about the absolute maximum clock speed (e.g., 1.5MHz or 2MHz or anything in between or even higher).
Like I said, if you don't believe me read the effing datasheet. (It is a great struggle to be polite)
Don't expect other people to do your reading for you.
...R